Time recorder for locks



TIRE RECORDER FOR LOCKS :5 sheets-sheet 24 Filed March 18, 1926INVENTOR. H055 L 0421/07 LB .fr NEYs.

p 23, 1929 D R. Lovejoy 1,710,228

TIME RECORDER FOR LOCKS Filed March 18, 1926 3 SheGtS-Sheet 5 a INI/ENTOR.

D/MM/ 77 R015 anvar IWT/V555 Patented Apr. 23, 1929.

UNITED STATES DIMMITT ROSS LOVEJGY, OF NEW YGRK, N. Y.

- TME RECORDER FOR LOCKS.

.Application` filed March 18, 1926.

rlhe object of the invention is to provide a recorder arranged toproduce a permanent record of Athe opening and closing of the lock forany given period of time and in such a manner that tampering with thelock during this period is recorded.

In order to accomplish the desired result, use is made of a clock-drivendrum containing a record sheet, a stylus mounted adjacent to the saiddrum and adapted to mark on said record sheet, actuating means for thestylus controlled by a movable member of the lock so that the stylusmakes a check mark, indicating opening and closing et the lock, and aline approximately at right angles to the said opening and closing checkmarks to indicate the period of time between the opening and closingcheck marks and at the same time by its continuity or lack of continuityto indicate whether the case protecting the record chart has not or hasbeen opened. It will also record the time at which the protecting` casehas been opened and how long it remained open.

In carrying out my invention I may, for example, employ a special formof lock, as described in United States Letters Patent NOS. 1,099,738;1,281,536 and 1,295,450.

In such locks, the recording lock and a primary or ordinary lock areapplied to the same door, with appropriate keepers, the keeper of therecording lock being provided with means, such as a pin or stop, inposition to engage the bolt ot the recording lock when the latter isunlocked, thereby retaining the door in such a 'position that the boltof the prima-ry lock cannot be locked until the bolt of the recordinglock is locked, and whereby the bolt et the recording lock cannot beunlocked while the bolt of the primary lock is locked.

It is desirable to not only record the time the door is locked orunlocked, but also the time thecase enclosing the recording` means isopen or closed. This case is opened at regular intervals by a dulyaccredited inspector for ren'ioving the record slip and rewinding theclock. It might also be opened by an unauthorized person.

My present invention provides means for making a continuous record notonly of the locking and unlocking ofthe door, but also of the openingand closing of the record case.

Referring to the accompanying drawings:

Figure l is a front elevation of the time Serial No. 95,638.

recorder for locks as applied, and with the casing 1n section.

Figure 2 is a cross section of the same on the line 2 2 of Figure l,

Figure 3 is an enlarged tace view ot a portion of the record sheet.

Figure 4 is an inverted sectional plan fiew of the time lock on the line4 4 ot Figure l, and with the parts in position when the enclosing caseis open.

Figure 5 is a` similar view of the same with the parts in position whenthe enclosing case is closed.

Figure (S is a sectional plan view of the lock bolt on the line 6 6 ofFigure 7, and with the parts in position when the door is unlocked.

Figure 7 is a sectional elevation en Ythe line 7 7 ot Figure 2 of thesame, with the parts in position when the door is unlocked.

Figure 8 is afront elevation of a door and jamb with a primary lock andkeeper and a time recording lock and keeper applied to it.

Figure 9 is a sectional plan view through the line 9 9 of Figure S, whenboth locks are unlocked.

Figure l() is a sectional plan view ot the primary lock and keeperthrough the line l0 l0 of Figure 8, when both loc is are unlocked.

'Figure 1l is the same view as Figure i), except that the time recordinglock is locked and Figure l2 is the same view as Figure il) except thatboth locks are locked.

On the door A is secured a casing or other support B for the autographtime recorded, and on the said support B is mounted a locking device Cof any approved construction, and preferably provided with akeycontrolled bolt C adapted to eng a keeper C2 on the door casing A tolock l door A in closed position. On the support .l is journaled thesha-it D oi? a vertically disposed drum D having the upper ond of itsshaft D coupled to a driven shaft E of a clockwork E oi' any approvedconstruction and likewise mounted on the support B. On the peripheralface of the drum D is removably held a record sheet F by the use ofsuitable pins D?. The record sheet F is provided with vertical lines Fspaced equal distances apart and representing` hours and subdivisions,the numerals F2 indicating the hours being marked'on the correspondinghour lines, preferably at the top thereof. As shown, the record sheetindicates twelve hours and the clockwork E rotates the drun D once everytwelve hours. vThe record sheet F is further provided with a spiral lineF3, the convolutions of which correspond to those of the screw rod I,which makes one revolution to every revolution ot' the drum D, so thatat each revolution of the screw rod I, the stylus G travels a distancecorresponding to that between adjacent convolutions of the sp-iral lineF In practice, the stylus is set to mark in the space between adjacentconvolutions ot the spiral line F". In order to indicate A. M. and l?.M. the spiral line is heavy for one convolution and light for the nextfollowing convolution, indicated by F`ll as will be readily understoodby reference to the drawings. As shown, the record sheet isarranged forobtainingl eight days record of the opening and closing ot the lockingdevice C.

On the record sheet F is applied the stylus Gprofided with a shank Glulcrumed at G2 on a lug II attached to or forming part ot a .nut Hscrewing on a screw rod I arranged parallel to the axis ofthe drum D andournalled in bearingson the support B. The upper end of the screw rod Iis provided with a gear wheel J in mesh with a gear wheel J secured vtothe top of the drum D so that when the latter is rotated bythe clockworkE then a. like rotary motion is given to the screw rod I tovmovev thenutH and consequently the stylus G lengthwise of the drum D. and therecord sheet F. he pivot G2 for ythe stylus arm G is arranged at anangle to the axis of thedrum D so that the stylus G swings relativelytoi the face of the record` sheet F, as will be readily understood byreference to Figures l and 5. The swinging movement olx the stylus G onthelug H and in a direction toward the record sheet F is limited, andthe back ot` the stylus `shank G is pressed on by al spring G secured toan arm H2 projecting rearwardly-'trom the nut H. The rear end of the armH2 is -lorked and engages a rock arm K journaled on' the supportB andextending the length of the drum D, and the lower end of the said rockarm K is engaged by alpush rod K held in alignment lby a ysleeve K2. Thepush rod K is engaged by a push spring L attached to the hinged cover B.Rock arm K-y is attached to retractile `spring K3 which moves it andpush rod K operations in reverse order so' that stylus Gr is applied tochart F and thel interrupted record line is begun again. The open spacebetween theportions of the line, as at F5 .indicates the period duringwhich the cover l was open. I

The screw shaft I is provided with cylindrical portions I2 at each endwhich are loose in the journals I. The shaft I is pressefL downward bythe torce ot gravity and by the leaf spring M and at the bottom bearsupon the extension N ot the lever N which is journaled at N2 and isprovided with a downwardly extending portion N3 bearing upon the top otthe bolt C.

The bolt C is provided with bosses O spaced. so that when the bolt is inthe unlocked position, the lever N will be raised up by resting on theboss and will raise the shalt I so that stylus G will record the timeolE opening by a verti al mark and will continue to record that the lockremains unlocked by keeping` the record line close to the upper portionot the allotted space. Conversely when the bolt C is shot, the samecycle is repeated in reverse order and the vertical mark indicates thetime of locking and continues to record that it remained locked bymaintaining the record line close to the lower portion ot' the allottedspace.

Referring to Figure 3, the chart indicates that the recording time lockwas imlockcd at approximately 8.05 A. M. on Monday, remained unlockeduntil P. M. when it was locked, was unlocked at 9.3()

P. M. and locked again at 9.45 I. M. ()n Tuesday it was unlocked at 7.55A. M. The

chart case cover was opened at 9.15 A. M. and closed at about 9.40 A. M.

Two bosses O are shown on top ot bolt C so that it can be used either ona lett hand or a right hand door by changinf" the removable bolt shutterl'rom one side to the other and reversing the bolt C so that it pointsin the opposite direction.

The cooperation between the time recording lock and the primary lock isaccomplished by equipping the keeper C2 o'l the recording lock with ahard steel pin C which strikes the end o the bolt C when it is in theunlocked position as shown in Figure 9. This prevents the door fromcompletely closing and as the bolt o t the primary lock is thus held outot lim` with the recess ot' its keeper as shown in Figure l0,

the bolt of the primary lock cannot be shot.

Vhen the bolt of the time recording lock is shot to simultaneously makea closing record and lock the door, the pin Civ enters the recess CL inthe bolt C, permitting the door A to completely close as shown in Figure11 and the bolt of the primary lock to come in line with the recess ofits keeper, permitting the bolt to be shot as shown in Figure l2.

Cil

To open the door the primary lock must first be unlocked. "his permitsthe door to swing slightly open as the time recording` lock is unlockedand the bolt C to disengage from the pin C3 and be Withdrawnsimultaneously, making an opening record on the record chart, throughthe correlated action of the various parts.

From the above description it will be seen that l have described acombination involving a time recording lock and en ori'linziry lock withmeans for making :t porn'nincnt record not only of the time the door waslocked and unlocked but also or the time the time mechanism Wasuncovered whether such uncovering wais done by ui'iai'ithorized tamperinor for the usual attention of the authorized agent.

I cla-im:-

1. Apparatus of the chazicter described comprising in combination meansfor locking and unlocking` it door7 means controlled by said lockinv`and unlocking` means for making a record of the time when the door islocked and the time when the door is unlocked, ineens normally renderingsaid record inaccessible but adapted to be operated to gain access tothe record, and means controlled by the operation of said lust n-imcdmeans to record the time when the record is accessible.

2. A recording` lock for doors comprising in combination a bolt 'forlockingl n door7 means for making zi record of the position of the bolt,iy closure normally maintaining the record inaccessible but adapted tobe opened for giving access thereto, and meu-ns for making a record oi''the opening of said closure.

DIMMITT ROSS LGVEJOY.

DISCLAIMER 1,710,228.-Dtm1nitt Ross Lovejoy, New York, N. Y. TIMERECORDER FOR LocKs. Patent dated Apr. 23, 1929. Disclaimer iled July 19,1935, by the assignee, The Silent Watchman Corporation.

Hereby enters this disclaimer tothe claims of said patent as follows:

(a) From claim 1 of said patent any apparatus of the characterdescribed, in Which the means that notes on the record the time when therecord is accessible makes the same notation as that made by the meansfor recording the time When the door is locked or the time when the dooris unlocked.

(b) From claim 2 of said patent any recording lock vfor doors in Whichthe means that notes on the record the opening ol' said closure makesthe same notation as that Which is made by the means Afor making arecord of the position of the bolt.

[Octal Gazette August 6, 1.935.]

DISCLAI MEF? 1,710,228.-Dtmmitt Ross Lovejoy, New York, N. Y. TIMERECORDER Fon LocKs. Patent dated Apr. 23, 1929. Disclaimer iiled July19, 1985, by the assignee, The Silent Watchman Corporation.

Hereby enters this disclaimer tothe claims of said patent as follows:

(a) From claim l of said patent any apparatus of the characterdescribed, in Which the means that notes on the record the time when therecord is accessible makes the saine notation as that made by the meansfor recording the time when the door is locked o1' the time when thedoor is unlocked.

(b) From claim 2 of said patent any recording` lock for doors in whichthe means that notes on the record the opening of said closure makes thesame notation as that Which is made by the means for making,` a recordoi' the position of the bolt.

[Ocz'al Gazette August 6, 1.935.]

